Brick Prevention:
Low Level: NAND Restoration and software on ARM & PPC side - bootmii/boot2 -> Don't touch boot2 (there's no software other than the installer to do so anyway)
System Menu Patch: Run software if banner-bricked - Priiloader -> Don't touch the System Menu.
System Menu Patch: Run software if banner-bricked - UUDv4 -> Don't touch the System Menu.
System Menu Patch: Run updates if banner-bricked - SaveMii -> Don't touch the System Menu
Emulation: Emulate your Wii using bootmii so you never make real changes to the Wii. All changes go to SD card. - SNEEKv2 -> Install Priiloader & autoboot to bootmii/IOS OR Install bootmii/boot2. This option will prevent USB/SD loading from working. Disc backups work.